Arcane Shift's cast time cannot be interrupted by anything other than Ezreal's own death. He will still suffer any crowd control effects, duration permitting, after it ends.
Arcane Shift's homing projectile can target and hit stealthed units and units hidden in the fog of war. It will not grant sight of the stealthed units however it will grant sight of the units hidden in the fog of war for a brief duration.
Arcane Shift's homing projectile does not prioritize champions.
COST: 100 Mana
Active: After gathering energy for 1 second, Ezreal fires a powerful, broad energy missile that travels in a line across the whole map, dealing magic damage to all enemies it passes through. Each enemy hit reduces the missile's damage by 10%, down to a minimum of 30% damage dealt.